Holder for dental devices.



N0. 694,02l. Patented Feb. 25, I902.

J. A. MEAD.

HOLDER FOB-DENIAL DEVICES.

(Application'flled Kay 29, 1901.)

(No llodal.)

m: "cums PETERS 0a., Pum'ouma. WASININOTON, n. c.

shows a side elevation of the holder.

UNITED STATES PATENT OFFICE.

JAMES A. MEAD, OF COREY, PENNSYLVANIA.

HOLDER FOR DENTAL DEVICES.

SPECIFICATION forming part of Letters Patent No.694;( )21,dated February25, 1902. I

Application filed May 29, 1901. Serial No. 62,400. (No model.)

T0 ctZZ whom, it may concern.- I

Be it known that I, JAMES A. MEAD, a citizen of the United States,residing at Corry, in the county of Erie and-State of Pennsylvania, haveinvented certain new and useful Improvements in Holders for DentalDevices and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same. I

This invention relates to mirror and r u bberdam holders for use indentistry; and it consists in certain improvements in the constructionthereof, as will be hereinafter fully described, and pointed outin theclaims.

The purpose of this invention is to provide a convenient holder formirrors and rubber dams as used by dentists, either together orseparately. 7

The invention is'illustrated in the accompanying drawings, as follows:

Figure 1 shows a holderin place. Fig. 2 Fig. 3 shows a top view of themirror-holding device, a part being in section to better showconstruction. Fig. 4 is a like view, none of the parts being in section.

Amarks the holding-bar. This is made of light material and is arrangedto conform to the shape of the face, passing beneath the nose around theupper lip. It has the slots at at the ends, into which a hook H may beplaced, the hook H being secured to an elastic material H of sufficientlength to pass around the head. Arranged on the baris a sliding block B,and on this block are the sockets O. A leverDis provided with the ball(1, which fits into the socket C. The lower end of the lever D isprovided with a socket d, into which fits a balls. The lever E extendsfrom the ball e, and the mirror F is secured to the lever. The socket Chas the two parts 0 c, which may be drawn together by the screw 0 togive a sufficient friction to the joint to hold the lever D in position.The socket d is provided with the parts d 61 and the screw 01 for givinga like adjustment to the joint on the ball 6. It will be noted that thebar A is arranged so that the wide surface is brought next to the face,so that it can readily conform to the shape of the face. The I block 0,sliding on this bar, is ordinarily given sufficient frictionalresistance to hold it in.

These points engage'th'e rubber without cutting it, and the rubber maybe drawn taut across the face by sliding the cross-pieces along on thebar. The grasp of the bar and cross-pieces on the rubber holds it tautand in position. This is practically trne,because the rubber is betweenthe bar and the face. It will be noted, as arranged, that the mirror canbe thrown up out of the month by simply moving the lever D withoutchanging the adjustment of the lever E. This is important, as thepatient may be allowed to close the mouth, if desired, and the mirrorcan be replaced to the same angle or position by simply a movement ofthe lever D.

What I claim asenew is 1. In a holder for dental devices, the com- .tothe face; means for attaching the bar in position on the face; a slidingblock on the bar; and a mirror carried by the block.

2. In a holder for dental devices, the combination of a flexible bararranged to conform to the face; means for attachingthe barin positionon the face; a sliding block on the bar; a mirror, and a lever systemconnecting the mirror with the block said lever system being providedwith a universal joint.

3. In a holder for dental devices, thecombination of a bar shaped toconform to the face between the nose and the mouth; means for holding itin this position; a sliding block on the bar; and a mirror carried bythe block.

I. In a holder for dental devices, the combination of a bar arranged tobeattached adjacent to the face; cross-pieces on said bar having meansfor engaging a rubber darn nose and month; the cross-pieces, I I, slidingly mounted thereon,having the outwardlyprojecting points, 4 i; theblocks, D, slidingly mounted on the bar; the lever system comprising thelevers, D and E; joints formed of the sockets, O and d; and the balls dand e.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES A. MEAD.

Witnesses:

RENA LANZA, J. KEESE I'IALLEOK.

